﻿<p>The <em>IfcResourceObjectSelect</em> enables selection of resource level objects that are to be related to an resource level relationship object. The use of <em>IfcResourceObjectSelect</em> includes the ability to assign an external reference entity (library, classification, or documentation reference) to entities within the resource level.</p>

<blockquote class="history">
HISTORY&nbsp; New select type in IFC4.
</blockquote>